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This high‑performance 75mm thermal imaging lens is developed and manufactured by ShangHai SILK Optical Technology CO., LTD, optimized for 640×512, 17μm infrared detectors to deliver sharp long‑wave infrared imaging output. Featuring a large aperture F1.0 design, this F1.0 athermal lens realizes reliable optical athermalization without extra electric focusing parts, maintaining stable imaging quality within‑40℃ ~ +80℃ extreme working environment. With HD exposed‑optics coating, high transmittance up to 88% and over 96% relative illumination, this infrared lens restores uniform brightness across the whole field of view, while low 0.85% distortion minimizes image geometric deviation. The M34×0.75 mechanical mount ensures quick and stable assembly, and IP67 front‑element waterproof rating brings solid dust‑proof and moisture‑proof capability. Weighs only approx.475g, the compact‑structured thermal imaging lens suits integration into various infrared observation devices.

Our F1.0 darklight lens 4mm demonstrates significant advantages in stray light suppression, edge imaging sharpness and light transmittance, with higher yield and better consistency. It can still clearly capture details in low-light conditions.

We have designed and produced various specifications and applications of Endoscopic lens for domestic and foreign customers. Whether it's 4K or 3D, Lens for CMOS sensors such as 1/6 ", 1/7.5", 1/9 ", 1/11", 1/13 ", and 1/18".

Our 1/9 Inch 140 degrees Wide Angle Endoscope Lens, Waterproof， The endoscopic lens plays an important auxiliary role in medical inspection. The purpose of the endoscopic lens is to guide the image, which transmits the image reflecting the endoscopic situation of the organ. The monitor is convenient for the doctor to observe the details of the tissue in the cavity clearly, and provides help for the doctor's safe operation and fine operation.

Standard M12 F2.4 2.8mm 1/2.7" Security CCTV Lens, and all products have been tested by MTF instruments, resulting in higher consistency compared to products from other suppliers. You can rest assured to purchase standard M12 lenses from our factory.

The curvature of the image captured with an 8mm fisheye SLR camera lens and the exaggerated perspective create an alternative landscape photography blockbuster! You can record the scenery you see, and many extreme sports enthusiasts like to use corresponding lenses.